Oh, Rats: Rodents Too Smart for Exterminators on Island visited by ‘Essex’ Castaways

A study published last week in the journal Royal Society Open Science described everyone’s worst nightmare: rats that appeared to be too smart to eat poison put out by exterminators on Henderson Island, a Pacific islet where survivors from the whaleship Essex landed in 1820. Researchers described a case report in which a project to eradicate invasive rats …

Op-Ed Calls for Elizabeth Hamilton on $10 Bill–but Harriet Tubman Will Grace the $20 Instead

Since last summer, many Americans have called for a woman to replace one of the men currently pictured on U.S. currency. The $10 was due for revision first, owing to the Treasury’s efforts to make bills more resistant to counterfeiting. That would have meant booting Alexander Hamilton–the first Secretary of the Treasury–off the $10 bill. Awkward. …